You’re saying all militarized countries on Earth will come to a point where Bitcoin is prominent and they will forfeit their power over their citizens without any fight?
You’re proposing Bitcoin will bring world peace without conflict?
Also, I don't think I agree with the notion that adopting crypto would result in a country forfeiting their power over the citizens. There are plenty of ways to integrate crypto into existing governments while still maintaining control.
I'm not claiming this will happen, more of contemplating on how a global decentralized currency can take over.
As far as bringing world peace, I don't think a decentralized currency would do any such thing. It's probably one of the required steps towards it, but one of many.
Meanwhile, the USA could try to preempt this future, but only the USA is incentivized to have USD be the world's reserve currency. As such the USA would need to threaten every other country in the world to stop using BTC, but its not clear if that causes BTC adoption to drop, or the Streisand Effect to kick in.
And ofcourse, "mutually assured destruction" stops any large country from employing too large a threat against any other large country.
If we are talking about a coordinated aggressive action to cripple the economy of a superpower nation, you're basically triggering "mutually assured destruction". As such its most productive to assume that doesn't occur.
Why anyone out themselves in harm’s way like that?
Risk isn't inherently a deterrent. If the reward is perceived to be high enough, there will be a first adopter.
Now let's say in a few years, that inflection point happens where crypto sees an exponential rate of adoption. Every other country begins to use it, some ban it, many others adopt it. At that point, if not using crypto will put the US at a disadvantage, they have no other choice but to adopt it as well.
A semi-related example is the way many companies "disrupt" the markets e.g. Uber/Airbnb wasn't a threat to many cities, until it was. At which point, the demand for Uber/Airbnb outweighed the government's ability to do anything about it.
It's not the best example since some cities have done things about it and Uber/Airbnb, being a company, is easier to target.
With crypto, its decentralized nature makes it much more difficult to control and attempting to ban it will raise issues around free speech.
That's not to say countries won't try and succeed in getting it banned, though in the case of the US, I don't think it's as cut and dry.